Greet the neighbours you encounter often and get along well with "buenos días/tardes/noches vecino(a)" Especially if you live in a rural area, locals will greet each other adding the term "vecinito(a)" -which translates roughly to "kind neighbour"
--Guy
40
Always greet shopkeepers with ‘buenos días’ or ‘buenas tardes’.
--Jenny
30
Greet women with an “air kiss” on the cheek (female-female interaction & male-female interaction) and men will shake hands, younger men/good friends will “bro hug”.
--Ken